Add Belarusian translation

[siarheiivanou]

_{By opening a pull request, I certify that I hold the intellectual property of the code I am submitting, and I am granting the initial authors of WBO a perpetual, worldwide, non-exclusive, royalty-free, and irrevocable license to this code.}

[lovasoa]

Hello and thank you !

It looks like there are formatting issues, you can run npx prettier to fix them.

For the translation itself, I cannot review it but here is what an llm has to say. Feel free to ignore it if it's not appropriate:

1. "White-out": "Карэктар" - This seems incorrect. "White-out" in the context of a whiteboard app likely means a correction tool or eraser overlay, not "corrector" (карэктар). Consider:

   • "Замазка" (white-out/correction fluid)
   • "Закрасіць" (paint over)

2. "grid": "Сетка" - While technically correct, "Рашотка" is more commonly used in Belarusian for "grid" in technical contexts.

3. "hand": "Рука" - In UI context, this is a pan/move tool. "Далонь" (palm) or "Перамясціць" (move) would be more appropriate for a tool name.

4. "mover": "Перацягнуць" - This is a verb, but for a tool name, a noun would be better: "Перамяшчальнік" or "Перамяшчэнне"

5. Inconsistency: "mousewheel" isn't capitalized but other UI elements are. Should be "Кольца мышы" or match the capitalization style of other entries.

Minor stylistic suggestions:

• "keyboard_shortcut": Consider "Гарачыя клавішы" (capitalized for consistency)
• The quotes in introduction_paragraph and other HTML strings - ensure they're consistent

[lovasoa]

I ran the formatter myself. Tell me if you need to chenge anything, otherwise I'll merge your work.

[siarheiivanou]

I ran the formatter myself. Tell me if you need to chenge anything, otherwise I'll merge your work.

Thank you. Seems that all good to go now

[lovasoa]

thank you !

[lovasoa]